Our assumption that the temperature decreases away from the accreting object
finds support in the empirical determination by [1]} for a CTTS
using line ratios probing different sections of the accretion column,
and agrees with the self-consistent model of [2]}.
This temperature distribution contrasts with the one assumed in the models of [3]} and [4]}, [5]} (see brief review in [6]}), which [7]} use, and their more recent developments (e.g. [8]}). There, the temperature profile scales everywhere inversely with the density, and the maximum temperature is a free parameter. [9]} suggest that magnetic effects could play a role in setting the temperature structure but this remains unknown. Thus our approximation is a possible one but its validity is currently difficult to assess.
